سوالات کوئرا

Author: amk9978

پاسخ سوالات کوئرا/کوین و قذرت شالاپ/Main.java

@@ -0,0 +1,23 @@
+import java.util.Scanner;
+
+/**
+ * Created by AMK on 7/28/2019.
+ * Life is nice :)
+ * Enjoy coding :D
+ */
+public class Main {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        double n = scanner.nextInt();
+        long sum = 0;
+        for (int i = 0; i < n / 2; i++) {
+            sum += i;
+        }
+        sum = sum * 2;
+        if (n % 2 == 0){
+            sum += n / 2;
+        }
+        n++;
+        System.out.println(sum/n);
+    }
+}